Anti-overflow urine sampling device for children

Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to an anti-overflow urine sampling device for children, the sampling device comprises a liquid collecting hopper, and further comprises a flow guide assembly, the flow guide assembly comprises a first flow guide pipe, a first sample bottle and a second flow guide pipe, the first flow guide pipe is in threaded connection with the lower end of the liquid collecting hopper, and the second flow guide pipe is in threaded connection with the lower end of the liquid collecting hopper; the first sample bottle is fixed at the lower end of the first flow guide pipe, the second flow guide pipe is arranged on the outer side of the first sample bottle, a third flow guide pipe is arranged at one end of the second flow guide pipe, and the lower end of the second flow guide pipe is in threaded connection with the second sample bottle. According to the urine collection device, urine is guided through the liquid collection hopper, initial-stage urine and middle-stage urine can be collected through cooperation of the first sample bottle, the second sample bottle and the plugging assembly, redundant urine is guided into the waste liquid pool, the phenomena of splashing, overflowing, sample pollution and the like in the urine collection process can be avoided, and the urine collection device is convenient to use and high in practicability. And the effectiveness of the sample is ensured.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and in particular relates to an anti-overflow urine sampling device for children. Background Art

[0002] In the field of medical testing, urine sample collection is a crucial step in clinical diagnosis, and the integrity and accuracy of the samples directly impact the reliability of test results. For children, urine sample collection faces higher requirements due to their unique physiological characteristics and level of cooperation. Traditional urine collection methods rely primarily on manual operation, using handheld collection containers to collect samples. However, this method has many limitations in children's urine collection scenarios, and targeted innovative devices are urgently needed to improve collection efficiency and safety. In the existing technology, the collection of children's urine samples generally has operational inconveniences and sample contamination risks. On the one hand, during the collection process, medical staff or parents need to hold the collection cup close to the child's body. Due to the active nature of children, urine is very likely to splash due to changes in body position or excessive movement, which not only causes sample loss but also may lead to health hazards. At the same time, the collection cup capacity design lacks precise adaptability to children's body shape, making it difficult to control the urine liquid level and prone to overflow, further affecting the quality of the sample. On the other hand, when the urine sample in the collection cup is poured into the preservation tube for inspection, the connection between the traditional collection cup and the preservation tube is poor, and spillage problems frequently occur during the pouring process, which can also cause urine sample contamination. Especially for test items that require strict quantitative analysis, this loss will directly lead to test data deviation. In addition, the existing device cannot achieve accurate collection of mid-stream urine, and it is difficult to meet the requirements of urine samples for specific time periods for test items such as routine urine tests and urine culture. It cannot fully adapt to the special scenarios of children's urine sample collection. To sum up, the existing children's urine collection technology has obvious deficiencies in anti-overflow, anti-spillage and mid-stream urine collection functions, and lacks humanized design based on children's physiological characteristics, resulting in low efficiency, large errors, high hygiene risks and other problems in the sample collection process. Based on the above problems, this application proposes an anti-overflow urine sampling device for children to improve the above problems. Summary of the Invention

[0003] The purpose of the present invention is to provide an anti-overflow urine sampling device for children, which diverts urine through a liquid collecting hopper, and through the cooperation of a first sample bottle, a second sample bottle and a blocking component, can collect the initial urine and the middle urine respectively, and divert the excess urine to a waste liquid pool, which can avoid splashing, overflowing, sample contamination and the like during the urine collection process, thereby ensuring the effectiveness of the sample.

[0004] The technical solutions adopted by the present invention are as follows: An anti-overflow urine sampling device for children, comprising a liquid collecting hopper and: A flow guide assembly, the flow guide assembly comprising a first flow guide tube, a first sample bottle, and a second flow guide tube, the first flow guide tube being threadedly connected to the lower end of the liquid collecting hopper, the first sample bottle being fixed to the lower end of the first flow guide tube, the second flow guide tube being arranged outside the first sample bottle, a third flow guide tube being arranged at one end of the second flow guide tube, the lower end of the second flow guide tube being threadedly connected to the second sample bottle, the first sample bottle being configured to collect early-stage urine, and the second sample bottle being configured to collect mid-stage urine, further comprising: A plurality of plugging assemblies are respectively assembled inside the first sample bottle and the second sample bottle; The urine sample can drive the blocking component to float upward, and after the urine sample in the first sample bottle or the second sample bottle is collected, the blocking component can adjust the flow direction of the urine in the diversion component.

[0005] In a preferred embodiment, a protective rubber strip is fixed to the upper end of the liquid collecting hopper, and the material of the protective rubber strip is silicone rubber.

[0006] In a preferred solution, a fourth flow guiding tube is provided between the first flow guiding tube and the second flow guiding tube, and the fourth flow guiding tube is in an inclined state.

[0007] In a preferred embodiment, a reversing bellows is provided between the second flow-guiding pipe and the third flow-guiding pipe.

[0008] In a preferred embodiment, the sealing assembly includes a hollow floating plate, a support rod and a positioning magnet. The hollow floating plate is slidingly connected to the inside of the first sample bottle or the second sample bottle in a clearance fit manner, the support rod is fixed to the upper end of the hollow floating plate, and the positioning magnet is fixed to the upper end of the outer side of the support rod.

[0009] In a preferred embodiment, a plurality of through holes are provided inside the hollow floating plate, and a flow converging surface is provided at the upper end of the hollow floating plate. The cross-section of the flow converging surface in the vertical direction is an inverted trapezoid.

[0010] In a preferred embodiment, a first blocking positioning plate is fixed to the upper end of the first sample bottle, and a second blocking positioning plate is detachably threadedly connected to the upper end of the second sample bottle, and the positioning magnet and the first blocking positioning plate, as well as the positioning magnet and the second blocking positioning plate, are adapted to each other, and the material of the first blocking positioning plate and the second blocking positioning plate are both one of the following materials: iron, martensitic stainless steel, ferritic stainless steel, and iron-based alloy.

[0011] In a preferred embodiment, the sum of the masses of the hollow floating plate, the support rods and the positioning magnets is recorded as M, and the buoyancy force on the hollow floating plate in the liquid is recorded as F, where F>M.

[0012] In a preferred embodiment, in the split state, a limit handle is used in conjunction with the first flow guide tube, and a threaded limit cover is used in conjunction with the second sample bottle. The lower ends of the limit handle and the threaded limit cover are fixed with a limit rod, and the limit rod is adapted to the positioning magnet.

[0013] The technical effects achieved by the present invention are: In the urine collection process of a child, the present invention allows the first-pass urine to flow into the first sample bottle and cause the hollow float inside the first sample bottle to float. When the positioning magnet inside the first sample bottle is attached to the first blocking positioning plate, the middle-pass urine flows into the second sample bottle through the second guide tube for collection and causes the hollow float inside the second sample bottle to float. When the positioning magnet inside the second sample bottle is attached to the second blocking positioning plate, the last-pass urine is discharged through the third guide tube. This allows the device to separate and collect the first-pass urine, the middle-pass urine, and the last-pass urine, thereby ensuring the effectiveness of the urine sample. The present invention diverts urine through the liquid collecting hopper, thereby avoiding urine splashing during the sampling process. At the same time, the excess urine is diverted to the waste liquid pool through the third diversion pipe, which can effectively prevent urine from overflowing into the sampling container during the sampling process. During the process of collecting midstream urine through the second sample bottle of the present invention, the second liquid inlet on the second sample bottle can be blocked by the cooperation of the second blocking positioning plate and the positioning magnet, thereby avoiding sample contamination, spillage, etc. caused by exposure of the urine sample. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic structural diagram of the present invention as a whole; Figure 2 It is a structural cross-sectional view of the overall structure of the present invention; Figure 3 It is an exploded schematic diagram of the overall structure of the present invention; Figure 4 is a structural cross-sectional view of a second sample bottle of the present invention; Figure 5 It is a structural schematic diagram of the blocking assembly of the present invention; Figure 6 This is a cross-sectional view of the overall structure of the present invention in a split state; Figure 7 It is a partial structural cross-sectional view of the present invention in a split state.

[0015] In the accompanying drawings, the components represented by the reference numerals are as follows: 10. Liquid collecting hopper; 20. Flow guide assembly; 21. First flow guide tube; 22. First sample bottle; 23. Second flow guide tube; 24. Third flow guide tube; 25. Second sample bottle; 26. Fourth flow guide tube; 27. Reversing bellows; 28. First blocking positioning plate; 29. ​​Second blocking positioning plate; 30. Blocking assembly; 31. Hollow floating plate; 32. Support rod; 33. Positioning magnet; 34. Through hole; 35. Converging surface; 40. Limit handle; 41. Threaded limit cap; 42. Limit rod. DETAILED DESCRIPTION

[0016] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0017] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0018] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in a preferred embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it constitute a separate or selective embodiment that is mutually exclusive of other embodiments.

[0019] Furthermore, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, when describing the embodiments of the present invention, cross-sectional views illustrating device structures may be partially enlarged and not to scale. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, the three-dimensional dimensions of length, width, and depth should be included.

[0020] Please see the attached Figures 1 to 3 FIG. 1 is a first embodiment of the present invention, which provides an anti-overflow urine sampling device for children, including a liquid collecting hopper 10, a protective rubber strip is fixed to the upper end of the liquid collecting hopper 10, and the protective rubber strip is made of silicone rubber, and further includes: The diversion assembly 20 includes a first diversion tube 21, a first sample bottle 22, and a second diversion tube 23. The first diversion tube 21 is detachably threadedly connected to the lower end of the liquid collecting hopper 10, and the first sample bottle 22 is fixed to the lower end of the first diversion tube 21. The first diversion tube 21 and the first sample bottle 22 are connected to each other through a first liquid inlet opened at the upper end of the first sample bottle 22. The second diversion tube 23 is integrally formed on the outer side of the first sample bottle 22. A third diversion tube 24 is integrally formed at one end of the second diversion tube 23. A diversion tube is integrally formed at the lower end of the second diversion tube 23. A threaded cover is integrally formed at the lower end of the diversion tube. The lower end of the threaded cover is detachably threadedly connected to the second sample bottle 25. The second diversion tube 23 and the second sample bottle 25 are connected to each other through the second liquid inlet opened at the upper end of the second sample bottle 25. The first sample bottle 22 is configured to collect early-stage urine, and the second sample bottle 25 is configured to collect mid-stage urine. The diversion assembly 20 includes: A plugging assembly 30, wherein the plurality of plugging assemblies 30 are respectively assembled inside the first sample bottle 22 and the second sample bottle 25, wherein the plugging assembly 30 adapted to the first sample bottle 22 is recorded as a first plugging unit 30A, and the plugging assembly 30 adapted to the second sample bottle 25 is recorded as a second plugging unit 30B; Among them, the urine sample can drive the blocking component 30 to float up, and after the urine sample inside the first sample bottle 22 or the second sample bottle 25 is collected, the blocking component 30 can block the first liquid inlet or the second liquid inlet, and the blocking component 30 can adjust the flow direction of urine inside the diversion component 20.

[0021] It should be noted that before collecting urine samples, the liquid collecting hopper 10, the diversion assembly 20 and the second sample bottle 25 are in a separated state and stored in a sterile sealed storage bag; when collecting urine samples, the liquid collecting hopper 10, the diversion assembly 20 and the second sample bottle 25 are connected to each other and are in a combined state.

[0022] Furthermore, the material of the protective rubber strip is any one of the following materials: silicone rubber, medical-grade PU, hydrogenated nitrile rubber. In this embodiment, the material of the protective rubber strip is preferably silicone rubber.

[0023] In this embodiment, when collecting urine samples from children, the third guide tube 24 is placed close to a waste liquid pool (such as a urinal, toilet, or other device for collecting waste liquid), and the collection bucket 10 is placed close to or in contact with the child's lower body to collect urine samples. After the child urinates, the urine enters the collection bucket 10. Under the action of gravity, the initial urine flows along the first guide tube 21 to the first sample bottle 22, and drives the first blocking unit 30A to float up. When the first blocking unit 30A is tightly attached to the lower end of the first guide tube 21, the urine enters the collection bucket 10. The first sealing unit 30A seals the first conduit 21 (at this time, the initial urine is collected in the first sample bottle 22), preventing the urine from entering the first sample bottle 22. The flow direction of the urine in the first conduit 21 is changed so that the urine in the first conduit 21 flows to the second conduit 23. When the urine passes through the second conduit 23, it flows into the second sample bottle 25 (at this time, the urine entering the second sample bottle 25 is the middle urine), and the second sealing unit 30B is driven to float upward. When the second sealing unit 30B is tightly fitted with the upper end of the second sample bottle 25, the upper end of the second sample bottle 25 is sealed by the second sealing unit 30B, so that urine can no longer enter the second sample bottle 25, and the flow direction of urine in the second guide tube 23 is changed, so that the urine in the second guide tube 23 flows to the third guide tube 24, so that the uncollected middle urine and the end urine are discharged into the waste liquid pool through the third guide tube 24. After the child finishes urinating, the second sample bottle 25 is rotated so that the second sample bottle 25 is closed. The sample bottle 25 and the second guide tube 23 are separated from each other, and the sample of the mid-stream urine collected in the second sample bottle 25 is sent for inspection to complete the urine sampling. Through the above scheme, during the urine collection process of children, the urine sample will not overflow or spill, and there is no need to transfer the collected urine sample to other containers, thereby avoiding the phenomenon of spilling during the pouring process. At the same time, the first-stream urine, mid-stream urine and last-stream urine can be separated and collected during the child's urination process to ensure the effectiveness of the urine sample.

[0024] For further information, see Figure 1 and Figure 2 As shown, the overall shape of the liquid collecting bucket 10 is similar to a breathing mask. A shaping surface is provided at the upper end of the liquid collecting bucket 10, and the shaping surface is ergonomic. When collecting urine samples from children, the liquid collecting bucket 10 is fitted against the child's lower body to avoid urine splashing. This arrangement allows the liquid collecting bucket 10 to be suitable for both boys and girls.

[0025] Secondly, please also refer to Figure 2 and Figure 3A fourth flow conduit 26 is integrally formed between the first flow conduit 21 and the second flow conduit 23 , and the fourth flow conduit 26 is in an inclined state relative to the first sample bottle 22 .

[0026] Specifically, such as Figure 2 and Figure 3 As shown, in this embodiment, the fourth flow guide pipe 26 is inclined upward.

[0027] In this embodiment, the above arrangement can prevent the first-pass urine from flowing into the second diversion tube 23 during the discharge of the first-pass urine by the child, thereby preventing the first-pass urine from flowing into the second sample bottle 25 through the second diversion tube 23 .

[0028] Next, please refer to Figures 1 to 3 A reversing bellows 27 is integrally formed between the second flow guide pipe 23 and the third flow guide pipe 24 .

[0029] In this embodiment, the setting of the reversing bellows 27 facilitates the adjustment of the direction of the third guide tube 24 so that when the third guide tube 24 discharges the last urine, it can discharge the last urine into the waste liquid pool to avoid spillage.

[0030] Please refer again Figures 4 and 5 The sealing assembly 30 includes a hollow floating plate 31, a support rod 32 and a positioning magnet 33. The hollow floating plate 31 is slidably connected to the inside of the first sample bottle 22 or the second sample bottle 25 in a clearance fit manner. The support rod 32 is fixed to the upper end of the hollow floating plate 31, and the positioning magnet 33 is fixed to the upper end of the outer side of the support rod 32.

[0031] In a preferred embodiment, the sum of the masses of the hollow floating plate 31 , the support rod 32 and the positioning magnet 33 is denoted as M, and the buoyancy force on the hollow floating plate 31 in the liquid is denoted as F, where F>M.

[0032] Furthermore, the hollow floating plate 31 is made of any one of the following materials: polypropylene, polyethylene, or other waterproof materials with a density lower than water and capable of elastic deformation. In this embodiment, the hollow floating plate 31 is preferably made of polypropylene.

[0033] In this embodiment, when collecting urine samples from children, urine flows into the first sample bottle 22 or the second sample bottle 25. Under the action of buoyancy, the hollow float 31 floats up. Since the hollow float 31 and the support rod 32 and the support rod 32 and the positioning magnet 33 are fixedly connected, the hollow float 31 drives the support rod 32 and the positioning magnet 33 to float up synchronously. When the first liquid inlet on the first sample bottle 22 or the second liquid inlet on the upper end of the second sample bottle 25 is in contact with the positioning magnet 33, the urine flows into the first sample bottle 22 or the second sample bottle 25. The hollow float 31 floats up. The positioning magnet 33 forms a blockage to prevent urine from continuing to enter, and then changes the flow direction of urine in the first guide tube 21 through the blocking component 30. After the positioning magnet 33 inside the first sample bottle 22 is fitted with the first liquid inlet, the urine inside the first guide tube 21 flows into the second sample bottle 25 through the second guide tube 23. After the positioning magnet 33 inside the second sample bottle 25 is fitted with the second liquid inlet, the urine inside the second guide tube 23 is discharged into the waste liquid pool through the third guide tube 24.

[0034] It should be noted that when urine flows into the first sample bottle 22 or the second sample bottle 25 , the inflowing urine will impact the upper end of the positioning magnet 33 , and this impact can only delay the floating of the hollow floating plate 31 but cannot prevent the floating of the hollow floating plate 31 .

[0035] Please refer again Figures 4 and 5 A plurality of through holes 34 are provided inside the hollow floating plate 31 , and a flow converging surface 35 is provided at the upper end of the hollow floating plate 31 . The cross-section of the flow converging surface 35 in the vertical direction is an inverted trapezoid.

[0036] In this embodiment, after the urine enters the first sample bottle 22 or the second sample bottle 25, it drips onto the upper end of the hollow float 31 under the action of gravity and flows into the bottom of the hollow float 31 through the through hole 34, causing the hollow float 31 to float. The converging surface 35 with an inverted trapezoidal cross-section can divert the urine on the surface of the hollow float 31.

[0037] Please refer again Figures 2 to 3 A first blocking positioning plate 28 is fixed to the upper end of the first sample bottle 22, and a second blocking positioning plate 29 is detachably threadedly connected to the upper end of the second sample bottle 25. A hollow handle is provided at the upper end of the second blocking positioning plate 29, and anti-slip grooves are provided on the outer side of the hollow handle. The positioning magnet 33 and the first blocking positioning plate 28, as well as the positioning magnet 33 and the second blocking positioning plate 29, are adapted to each other.

[0038] Please note that Figure 2As shown, the inner diameter of the guide tube arranged at the lower end of the second guide tube 23 is smaller than the outer diameter of the hollow handle, and the hollow handle and the guide tube are clearance-matched. Through this arrangement, when the middle urine flows into the second sample bottle 25, the urine sample will not remain on the outside of the hollow handle. After the user separates the second sample bottle 25 and the second guide tube 23, the outside of the hollow handle will not be contaminated by urine even if the user touches the finger.

[0039] Furthermore, the material of the first blocking positioning plate 28 and the second blocking positioning plate 29 are both one of the following materials: iron, martensitic stainless steel (such as 401 stainless steel), ferritic stainless steel, iron-based alloy. In this embodiment, the material of the first blocking positioning plate 28 and the second blocking positioning plate 29 are preferably 401 stainless steel.

[0040] Here, the outer diameter of the positioning magnet 33 is smaller than the outer diameter of the second blocking and positioning plate 29 .

[0041] In this embodiment, after urine flows into the first sample bottle 22 or the second sample bottle 25, the hollow float plate 31 floats up under the action of buoyancy, driving the support rod 32 and the positioning magnet 33 to move synchronously. When the positioning magnet 33 is in contact with the first blocking positioning plate 28 or the positioning magnet 33 is in contact with the second blocking positioning plate 29, the positioning magnet 33 has the property of adsorbing ferromagnetic materials, so that the positioning magnet 33 and the first blocking positioning plate 28 or the positioning magnet 33 and the second blocking positioning plate 29 are tightly in contact with each other, and then the first sample bottle 22 or the second sample bottle 25 is blocked by the positioning magnet 33, so that urine can no longer flow in. After the urine in the middle section of the second sample bottle 25 is collected, the positioning magnet 33 and the second blocking positioning plate are in contact with each other. 29 immediately blocks the second liquid inlet at the upper end of the second sample bottle 25, which can avoid sample contamination caused by exposure of the urine sample. At the same time, after the child's urine is discharged, the device is rotated with the end of the third guide tube 24 away from the first guide tube 21 as the origin, so that the device is tilted, and the urine remaining in the first guide tube 21 and the second guide tube 23 is poured into the waste liquid pool. The second sample bottle 25 is rotated to separate the threaded cover at the lower end of the second sample bottle 25 and the second guide tube 23. At this time, the positioning magnet 33 inside the second sample bottle 25 and the second blocking positioning plate 29 are tightly fitted, and the middle urine sample in the second sample bottle 25 cannot flow out. The urine sample in the second sample bottle 25 can be sent for inspection.

[0042] In a specific embodiment, when medical staff are testing urine samples, if they need to transfer the urine sample inside the second sample bottle 25 to other containers, they can rotate the hollow handle at the upper end of the second blocking positioning plate 29 to separate the second sample bottle 25 and the second blocking positioning plate 29, and then pour the urine in the second sample bottle 25 into other containers.

[0043] In another specific embodiment, when medical staff are testing urine samples, if it is necessary to place the second sample bottle 25 directly into the testing equipment, when testing the urine sample in the second sample bottle 25, the hollow handle on the upper end of the second blocking positioning plate 29 is rotated to release the threaded connection between the second sample bottle 25 and the second blocking positioning plate 29, and the hollow handle is pulled outward. Since the hollow float 31 is made of a material that can undergo elastic deformation, when the hollow float 31 passes through the second liquid inlet, it is squeezed and deformed and can pass through the second liquid inlet, thereby removing the blocking component 30 inside the second sample bottle 25, and the second sample bottle 25 can be directly placed in the testing equipment for urine testing.

[0044] Please refer again Figures 6 and 7 In the split state, a limit handle 40 is used in conjunction with the first flow guide tube 21, and a threaded limit cover 41 is used in conjunction with the second sample bottle 25. The lower ends of the limit handle 40 and the threaded limit cover 41 are fixed with a limit rod 42, and the limit rod 42 is adapted to the positioning magnet 33.

[0045] In this embodiment, when in the split state, the positioning magnet 33 can be limited by the cooperation of the limiting handle 40, the threaded limiting cover 41 and the limiting rod 42, so as to prevent the positioning magnet 33 from moving due to the device flipping before use (such as during transportation or storage and retrieval), thereby preventing the positioning magnet 33 from fitting with the first blocking positioning plate 28 or the positioning magnet 33 and the second blocking positioning plate 29. Before urine sampling for children, the first guide tube 21 is kept in a vertical upward state, and the threaded limiting cover 41 and the limiting rod 42 are rotated respectively to remove the limiting rod 42 inside the first sample bottle 22 and the second sample bottle 25. The limiting of the positioning magnet 33 by the limiting rod 42 can be released. After the liquid collecting hopper 10 and the first guide tube 21 and the second guide tube 23 and the second sample bottle 25 are assembled, urine can be collected and sampled.

[0046] The working principle of the present invention is: When collecting urine samples from children, the liquid collecting hopper 10, the first guide tube 21 and the second sample bottle 25 are assembled to change them from a separate state to a combined state, the third guide tube 24 is placed close to the waste liquid pool, and the liquid collecting hopper 10 is placed close to or in contact with the child's lower body to collect urine samples. After the child urinates, the urine enters the liquid collecting hopper 10. Under the action of gravity, the initial urine flows along the first guide tube 21 to the first sample bottle 22, and drives the hollow floating plate 31 inside the first sample bottle 22 to float up. When the positioning magnet 33 inside the first sample bottle 22 and the first blocking positioning plate 28 are in contact, the first guide tube 21 is blocked by the cooperation of the above-mentioned positioning magnet 33 and the first blocking positioning plate 28, so that urine can no longer enter the first sample bottle 22, and the urine inside the first guide tube 21 flows to the second The urine flows into the second sample bottle 25 when passing through the second guide tube 23, and drives the hollow float 31 inside the second sample bottle 25 to float up. When the positioning magnet 33 and the second blocking positioning plate 29 inside the second sample bottle 25 are tightly fitted, the guide tube is blocked by the cooperation of the positioning magnet 33 and the second blocking positioning plate 29, so that urine can no longer enter the second sample bottle 25, and the urine inside the second guide tube 23 flows to the third guide tube 24. The uncollected middle urine and terminal urine in the second guide tube 23 are discharged into the waste liquid pool through the third guide tube 24. After the child finishes urinating, the second sample bottle 25 is rotated to separate the second sample bottle 25 and the second guide tube 23. The sample of the middle urine collected in the second sample bottle 25 is sent for inspection, and the urine sampling is completed.

[0047] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained herein shall, unless otherwise specified or limited, be implemented in accordance with conventional means in the art.

Claims

1. An anti-overflow urine sampling device for children, characterized by: It includes a liquid collecting hopper (10), and further includes: A flow guide assembly (20), the flow guide assembly (20) comprising a first flow guide tube (21), a first sample bottle (22) and a second flow guide tube (23), wherein the first flow guide tube (21) is threadedly connected to the lower end of the liquid collecting hopper (10), the first sample bottle (22) is fixed to the lower end of the first flow guide tube (21), the second flow guide tube (23) is arranged on the outside of the first sample bottle (22), a third flow guide tube (24) is arranged at one end of the second flow guide tube (23), the lower end of the second flow guide tube (23) is threadedly connected to the second sample bottle (25), the first sample bottle (22) is configured to collect early urine, and the second sample bottle (25) is configured to collect mid-stream urine, and further comprising: A blocking assembly (30), wherein a plurality of blocking assemblies (30) are respectively assembled inside the first sample bottle (22) and the second sample bottle (25); The urine sample can drive the blocking component (30) to float upward, and after the urine sample inside the first sample bottle (22) or the second sample bottle (25) is collected, the blocking component (30) can adjust the flow direction of the urine inside the diversion component (20).

2. The anti-overflow urine sampling device for children according to claim 1, characterized in that: A protective rubber strip is fixed to the upper end of the liquid collecting hopper (10), and the material of the protective rubber strip is silicone rubber.

3. The anti-overflow urine sampling device for children according to claim 1, characterized in that: A fourth flow guide tube (26) is provided between the first flow guide tube (21) and the second flow guide tube (23), and the fourth flow guide tube (26) is in an inclined state.

4. The anti-overflow urine sampling device for children according to claim 1, characterized in that: A reversing bellows (27) is provided between the second flow guide tube (23) and the third flow guide tube (24).

5. The overflow-proof urine sampling device for children according to claim 1, characterized in that: The blocking assembly (30) comprises a hollow floating plate (31), a support rod (32) and a positioning magnet (33); the hollow floating plate (31) is slidably connected to the inside of the first sample bottle (22) or the second sample bottle (25) in a clearance fit manner; the support rod (32) is fixed to the upper end of the hollow floating plate (31); and the positioning magnet (33) is fixed to the upper end of the outer side of the support rod (32).

6. The overflow-proof urine sampling device for children according to claim 5, characterized in that: A plurality of through holes (34) are provided inside the hollow floating plate (31), and a flow-gathering surface (35) is provided at the upper end of the hollow floating plate (31). The cross-sectional shape of the flow-gathering surface (35) in the vertical direction is an inverted trapezoid.

7. The overflow-proof urine sampling device for children according to claim 5, characterized in that: A first blocking positioning plate (28) is fixed to the upper end of the interior of the first sample bottle (22), and a second blocking positioning plate (29) is detachably threadedly connected to the upper end of the second sample bottle (25), and the positioning magnet (33) and the first blocking positioning plate (28) as well as the positioning magnet (33) and the second blocking positioning plate (29) are adapted to each other, and the material of the first blocking positioning plate (28) and the second blocking positioning plate (29) are both one of the following materials: iron, martensitic stainless steel, ferritic stainless steel, and iron-based alloy.

8. The overflow-proof urine sampling device for children according to claim 5, characterized in that: The sum of the masses of the hollow floating plate (31), the support rod (32) and the positioning magnet (33) is recorded as M, and the buoyancy force on the hollow floating plate (31) in the liquid is recorded as F, where F>M.

9. The overflow-proof urine sampling device for children according to claim 1, characterized in that: In the separated state, a limiting handle (40) is used in conjunction with the first flow guide tube (21), and a threaded limiting cover (41) is used in conjunction with the second sample bottle (25). The lower ends of the limiting handle (40) and the threaded limiting cover (41) are both fixed with a limiting rod (42), and the limiting rod (42) is adapted to the positioning magnet (33).

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